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GeForce 9600 GT 1GB vs GeForce GT 640 DDR3
Intro
The GeForce 9600 GT 1GB features a core clock speed of 650 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 256-bit bus, and uses a 65/55 nm design. It features 64 SPUs, 32 TAUs, and 16 Raster Operation Units.Compare all that to the GeForce GT 640 DDR3, which has core speeds of 900 MHz on the GPU, and 1782 MHz on the 2048 MB of DDR3 RAM. It features 384 SPUs along with 32 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 640 DDR3 |
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65 Watts |
| GeForce 9600 GT 1GB |
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95 Watts |
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Memory Bandwidth
As far as performance goes, the GeForce 9600 GT 1GB should in theory be a small bit better than the GeForce GT 640 DDR3 overall. (explain)
| GeForce 9600 GT 1GB |
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57600 MB/sec |
| GeForce GT 640 DDR3 |
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57024 MB/sec |
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Texel Rate
The GeForce GT 640 DDR3 should be a lot (about 38%) faster with regards to texture filtering than the GeForce 9600 GT 1GB. (explain)| GeForce GT 640 DDR3 |
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28800 Mtexels/sec |
| GeForce 9600 GT 1GB |
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20800 Mtexels/sec |
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Pixel Rate
If using a high resolution is important to you, then the GeForce GT 640 DDR3 is a better choice, and very much so. (explain)| GeForce GT 640 DDR3 |
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14400 Mpixels/sec |
| GeForce 9600 GT 1GB |
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10400 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
GeForce 9600 GT 1GBAmazon.com
Check prices at:
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GeForce GT 640 DDR3Amazon.com
Check prices at:
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Specifications
| Model | GeForce 9600 GT 1GB | GeForce GT 640 DDR3 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | Feb 2008 | June 2012 |
| Code Name | G94a/b | GK107 |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 650 MHz | 900 MHz |
| Memory Speed | 1800 MHz | 3564 MHz |
| Power (Max TDP) | 95 watts | 65 watts |
| Bandwidth | 57600 MB/sec | 57024 MB/sec |
| Texel Rate | 20800 Mtexels/sec | 28800 Mtexels/sec |
| Pixel Rate | 10400 Mpixels/sec | 14400 Mpixels/sec |
| Unified Shaders | 64 | 384 |
| Texture Mapping Units | 32 | 32 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | DDR3 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 65/55 nm | 28 nm |
| Transistors | 505 million | 1300 million |
| Bus | PCIe x16 2.0 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10 | DirectX 11.0 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
GeForce 9600 GT 1GBAmazon.com
Check prices at:
|
GeForce GT 640 DDR3Amazon.com
Check prices at:
|
Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
|
Comments
2 Responses to “GeForce 9600 GT 1GB vs GeForce GT 640 DDR3”I have a 2009 Mac Book Pro that has a GT9600 graphics card. Comparing it to the newer GT640 I wondered if the difference in performance justified the expense in switching. Evidently not. I am mainly into digital graphics and beginning photography.
Na minha opiniao gt 640 e melhor no geral.